Drawing/sketches in blender
You could follow this
https://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro/Modeling_a_Wolf_from_Guide_Images, keeping this in mind https://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro/Background_Images

It seems suited to a beginner, to me.

My personal advice: the most precise (all views well aligned, same scale, absolutely still subject) front/side/top view you can get, the better.